Burglar-alarm.



f1 lication 1e(1 febuaf 12, 1918.

Be it known that I, EDWARD G. ERvIN, Hr citizen of the Tnited States,fesiding ft Ian- So ity, in the oonnty of JackSon nd s)tate of 1iSSoofhave invented ceftin neW ond nSefnl IIn foveInentS in 1ufglaf1lI'fnS off hich the following iS o SpeCificotion.

- ThiS invention felateS to bUfglaf olafIns, ond Inofe eSPecially todeviceS of thiS ohof Ctef adoPted fof uSe in connection ff ith doofS andx iI1(1ovS, ond the obiect of the in eIIt1on iS to Pfoduoe L bUfglofolafn1 of Sin1 le, Stfong, dofable and oheap conStffIC fion to be heldoookod fof ction by ft oloSe0 doof of vindov and to opofte UtoInatioally the inStant the doof of fvindofv iS Slightly oPened.

11ofe S )eCifioally 1Tly object iS to foduce deviCe of the ohfnctef Setfofth, coIn oSed of baSe lote, and o Single o efative off of 11Inn1ef,the lattef to Inoke itS opefativo stfoke nndef fhe ofvef of SPfing heldnndef tenSion only When the hann1ef an(1 one end of the late afeintefPoSed betfveon L xod aft of doof of vindofv oSing and the oloSeddoof of vindov fes )eotively.

f1 ith the objeot of Pfoducing bUfglof 1f1,n1 of the ohafactef Setfofth, the inven tion conSiStS in ceftin nove1 ond LlSeful foa tofeS ofoonstfnction and oofnbintionS of PaftS S hefoinaftef deScfibed andClain1e(l and in ofdef that it m be fully undefstood, fefefence iS to behad to the oooofnponying dfoofog, in hich I igofe 1, iS a ffogTnentafyhofizontal Seotion of doof and doof oaSing T ith 1 bufglaf alofn1eInbodying Iny invention, ffanged in oPefative felation thefeto.

ig. 2, iS o vieW diSClosing one fce of tho devioe, and Shoving thelottef in oPefativo felation to the doof, nd itS haInInef in oockedPoSition in f1111 1ineS and in eXP1o Sion osition in dotted lineS.

ig. 3, iS a veftiool Section of Poft of o vindofv caSing vith thebufglof alafn1 in op efotive poSition felotive to the fvindofv onS- ingond soSh.

efeffing to the dfoWing i11 detail, 1 indi cateS f Inetol platepfefefabl} taPefed Lt itS endS and of SHoh SiZe 1S to be oonvenientlycffied in a I)L1fSe of vest Pocket, nd I)fo vided neafef one end thanthe othef f ith ono of fnofe fongs 2 Stonding oL1 ffom one of itS faceS,the pfong of PfongS oonStituting o Shonldef in the uSe of the d.evioe ono doof of the like, aS hefeinaftef explained.

1fafenfod Nov. 2G. 1918.

SeTial No. 217,269-

f1t the end of the )lIfo lnoSt fe1note ffoin the soid pfong a o foflnodoli S 3 fofho10 ing flatly aginSf tho op oSito Side of fho PlHte ffoD1Soid pfongs, o PofoSSion CP of oqnifnlenf device fof SOHnding on olnfn],pfefefab]} i11 Sifni]ifdo of thof pfoduood hy fifing o fev01Vof of tholike, So S o 11()t only ofokon the housoho]d bot ffig1ton the of Son nttenPtin the UnnHthofiZed enffonoo.

Cli S, the )1te iS pfovided With o )Ii1 of oofS 5, CliS )oSed at fightongleS to tho fongS ond of the saIne Si(lo of tho Plofe aS Said ClipS.

hammef fof Stfiking nnd exploding the pefousSion oo of tho like, iSivoted fo tho onfS 5 It iS pfofefably f()flT1ed of vifo ben to fovidepivot 6 extending t}1fough Sti(1 eofS, ond 111 o1 In 7 in the foflT1 ofo looI) noffo ed of attennated ot itS ffee end so fhot if may oSSbetween the cli S ond im ingo u on the oentfol poftion of the cop. ThepoftS afe So foPoftioned that the h1n II1ef fvhen in oooked osition,convefgeS Slighfly vith feSI)oct to t11e Ploto againSt fvhioh it beafSof itS ffee end, So as to fooi1i tate the tting of the said end ond fhepfoxi 1nte pft of the plate in the naffow spce HSuolly fonnd betWeen adoof ond itS iofnb of a WindoW SoSh and t116 Sill Stop of Sill ShoUldofof L Tvindovv cSing.

To eifeot Opefotion of the haInInef, f S fing iS pfovided, t11e sInebeing pfefefbly pfodooed by donbling it to pfovide the olined ooilS 8,the loop end 9 betv7een Soid coilS and the free ends 10, at the onterendS of the CoilS. The CoilS fit upon the pivot 6 of the fla1T1IIlef,Tvith the loop end 9 beofing oginSt the )late Ind the ffee endS of tefIninalS 10 beafing ogainSt the h1IT1fnef and fending to hold it in ofthfow it to the o- Sition Sho n by dotted lineS in 1 ig. 2.

In ig. 1, 11 indicoteS o doof ian1b, 12 the doof Stop, 13 the tfifn ofthe innef Side of the ionb, and 11 the doof fof c10Sing odiacent theiomb and ngainSt the sto the Space bet een the iaInb and ffee edge ofthe doof oc oommodating the ffee end of the hnmmef 7 and one end of theplate 1, the lattef being slipped into Stid Space unti1 the fongS ofShouldef engage the innef face of the doof, of Which tiIne the hommefactnating Spfing appheS Sucient powef to hold of maintain the plate andhaInInef in place IIntil the doof iS o ened sufficiently to effeotfvithdfav'al of the hammef ffom en ogement With the imnb, if being notedthot thiS vithdfava1 aofion is

